B.Sc. DEGREE EXAMINATION, APRIL 2018
Sixth Semester
Computer Science
COMPUTER NETWORKS
(CBCS 2011 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. What are the components are needed to construct a
computer network?
2. Write the evoluationary development of a computer
network.
3. What is meant by guided transmission?
4. What are the services of the physical layer?
5. What are the types of errors occurs in data link layer?
6. What is meant by parity checking?
7. Write the need for network layer.
8. What is meant by multiplexing and de-multiplexing?
9. What are mail Access protocols?
10. What is meant by name space?
Sub. Code
1BCE6C1
AFC-10686
2
Sp 1
Part B x 5 25)
Answer all questions, choosing either or
11. Explain about OSI reference model briefly.
Or
What are the applications of computer networks?
12. Explain about fibre optic cable.
Or
Describe about circuit switching in detail.
13. Describe about forward error correction methods.
Or
Describe about Ethernet.
14. Explain the addressing principles in network layer.
Or
Explain about the static versus dynamic routing.
15. Explain about the RSA algorithm.
Or
Describe about world wide web.
Part C 10 30)
Answer any three questions.
16. Describe about network standardization in detail.
17. Describe about public switched telephone network.
18. Describe about channel allocation problem in detail.
19. Describe about user Data Gram protocol.
20. Write the technical concepts of Electronic mail.
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